Contributor I

Record player + two Era 100. Massive Hum

Forum|Forum|3 years ago
September 21, 2023
22 replies
1126 views

Hi,

It was my wife’s bday yesterday and I she wanted a record player system. So I brought the

Pro-Ject T1 Phono SB Turntable
2 Room set with Era 100
Sonos Line in Adapter

I spent yesterday evening setting the system up while my wife excitedly went to get a number of albums from the record store. I think I spent just under $1000 which was a big chunk of money.

As soon as I turn the record player on we get a massive hum. I have tried all the settings, unplugging and plugging the system. Probably around 3 hours of trouble shooting last night following posts and reviews.

You can hardly hear the music on the speakers over the loud hum and it is very annoying.

I’m now reaching out the community for help. I’m at my wits end and my wife was understandably very upset we didn’t get a differet record player and speaker set.

Anything else I should try? I’ve tried attaching the grounding wire and this does not work or make a difference. I’ve tried multiple settings in the app leading to a very quiet hum where you can hardly hear the music.

I’ve tried switching the wire around, moving the speakers and still no joy.

Please help

Thanks

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G

GuitarSuperstar

Lead Maestro

Make sure the switch on the back of the turntable is switched to LINE OUT not PHONO OUT. And double check all of your connections. You can also change the Source Level setting under the Line-In settings for the Era 100s in the Sonos app to see if it makes any difference.

"Receive with simplicity everything that happens to you." - Rashi

D

DaveRecordplayerAuthor

Contributor I

Thanks GuitarSuperstar,

System is set to LINEOUT, I’ll recheck the connections again.
I have tried changing all the settings under line-In. I have tried connecting to both left and right speakers. Thanks for your help

G

GuitarSuperstar

Lead Maestro

Thanks GuitarSuperstar,

System is set to LINEOUT, I’ll recheck the connections again.
I have tried changing all the settings under line-In. I have tried connecting to both left and right speakers. Thanks for your help

You can also try plugging the turntable into a different outlet or power strip.

"Receive with simplicity everything that happens to you." - Rashi

Stanley_4

Grand Maestro

If it doesn’t have a polarized plug try flipping it over.

Try a different RCA cable and make sure it is fully inserted.

If you have another device with a line-in try the turntable on that.

Same for the 100, if you have another device with a Line-out try that.

Narrowing the problem down is going to make fixing it easier.

D

DaveRecordplayerAuthor

Contributor I

Thanks both for your help and replies. I have tried plugging and unplugging the wires and have moved the turntable and speakers around the house.

I need to buy a new plug and rca cables to try. I’ll also try and get a device with a line input.

you can hear the hum as soon as I turn the switch on the turntable on.

buzz

I’d want to check the turntable’s power supply. If you have a Voltmeter, in DC mode the power supply output should measure 15V. In AC mode the reading should be near zero.

R

rsint

Enthusiast I

What have you attached the ground wire running from the turntable to?

I

D

DaveRecordplayerAuthor

Contributor I

Thanks Buzz - I’ll have to get a voltmeter

rising - See pics below. I have changed the wires at both ends. I wish I could upload a short video on the forum so everyone can hear the hum. I have tried swapping the wires around and the hum is still there

G

GuitarSuperstar

Lead Maestro

@DaveRecordplayer I wonder if the black adapter you are using is causing the issue. Have you tried using a standard RCA to 3.5mm audio cable like this?

https://a.co/d/dn13P5Y

"Receive with simplicity everything that happens to you." - Rashi

D

DaveRecordplayerAuthor

Contributor I

Thanks ordered. Will Report back once I have installed it.

@Stanley_4 - Any ideas for a polarized plug I can get